What's in a bubble? Perspectives on "irrational exuberance," from tulipmania to
dotcom mania.

Whether triggered by inexplicable phenomena, such as the spontaneous tulip craze in the Netherlands in the 1630s, or kindled by the manipulative actions of individuals or corporations, as in the case of the 1720 South Sea Bubble, speculative bubbles can have ruinous effects. Here are five examples of historic bubbles: the Dutch Tulipmania (1634-1638); the Mississippi Bubble (1719-1720); the South Sea Bubble (1720); the Bull Market of the Roaring Twenties (1924-1929); and Japan's "Bubble Economy" of the 1980s.

This comprehensive databank from Forbes.com offers statistics on the performance of
venture capitalists and underwriters, as well as the benchmark average
performances of IPOs between 1990 and 2000. "The 1990s turned average buy-and-hold investors into avid IPO watchers, seduced
by the triple-digit gains many new issues posted on their first day of trading.
Unfortunately, one-fifth of shares that began public trading in the 1990s have
declined more than 90% from their offering price, what big institutional
investors and Wall Street insiders paid before the company went public."